Zu Goes Its Own Way
The Dominance uses three 10" paper-cone drivers, each with a whizzer cone, to cover the range from 27Hz to 12kHz. Each is in its own sub-enclosure featuring Zu's proprietary ZuRG loading (See AD's review) with the outer two tuned identically and the central drive-unit adjusted to give a bit more upper-midrange energy. There is also a downward-firing 15" subwoofer, covering the octave below 27Hz, and completing the line-up are two horn-loaded ring-radiator tweeters operating above 12kHz. Unusually, these are placed at the top and bottom of the Dominance.
For the dem, the subwoofer was powered by a Pass Labs XA30.5 but the main drive-units were driven by a 1.5Wpc Yamamoto SET amp. Yup, just 1.5W, but the Dominances still managed to fill the room with sound. Lows were tight and extended; imaging was tangible; jump factor was startling; but I couldn't get away from a touch of character in the mid-treble imparted by those whizzer cones.